Added mention filter

mastoposter/filters/__init__.py

@@ -1,2 +1,4 @@
 from .base import BaseFilter  # NOQA
-from mastoposter.filters.boost_filter import BoostFilter  # NOQA
+from mastoposter.filters.boost import BoostFilter  # NOQA
+from mastoposter.filters.combined import CombinedFilter  # NOQA
+from mastoposter.filters.mention import MentionFilter  # NOQA

mastoposter/filters/mention.py

@@ -0,0 +1,29 @@
+from configparser import SectionProxy
+from re import Pattern, compile as regexp
+from typing import ClassVar
+from fnmatch import fnmatch
+from mastoposter.filters.base import BaseFilter
+from mastoposter.types import Status
+
+
+class MentionFilter(BaseFilter, filter_name="mention"):
+    MENTION_REGEX: ClassVar[Pattern] = regexp(r"@([^@]+)(@([^@]+))?")
+
+    def __init__(self, section: SectionProxy):
+        super().__init__(section)
+        self.list = section.get("list", "").split()
+
+    @classmethod
+    def check_account(cls, acct: str, mask: str):
+        return fnmatch(acct, mask)
+
+    def __call__(self, status: Status) -> bool:
+        return any(
+            (
+                any(
+                    self.check_account(mention.acct, mask)
+                    for mask in self.list
+                )
+                for mention in status.mentions
+            )
+        )

mastoposter/types.py

@@ -262,6 +262,7 @@ class Status:
     reblogs_count: int
     favourites_count: int
     replies_count: int
+    mentions: List[Mention]
     application: Optional[Application] = None
     url: Optional[str] = None
     in_reply_to_id: Optional[str] = None
@@ -298,6 +299,7 @@ class Status:
             card=data.get("card"),
             language=data.get("language"),
             text=data.get("text"),
+            mentions=[Mention.from_dict(m) for m in data.get("mentions", [])],
         )
 
     @property